Improvement in cotton-presses



embodying my invention.

sides of the nut C and frame A.

WUNITED STATES PATENT @trionfi GEO. c. nAvins, OF DAYTON, OHIO, Assrenon r.ro OHIO HHOLIH COMPANY@ y IMPROVEMENT |N COTTON-PRESSES.

Specification forming part of Letters Patent No. 47,490, dated April 25, 1865. i

of parts in a baling-press adapted to combine the advantages of speed at the commencement with great power at the termination of the pressing action.

Figure lis a perspective view' of a press Fig.V 2 represents the arrangement of swinging head or platen.

A is a frame of oak or other suitable material, and having journaled vertically within it a screw, B, provided with a nut, C, which travels up or down the screw B as the latter is rotated forward or backward.

D are stanchions, which guide to a vertical path the platform E, whichplatform is suspended by rods F from the knuckles g of the two sets of toggles G and Gf, which are articulated in the manner represented to opposite The plat form E'supports and carries upward in the act of pressing a baling trunk or box, H, of the represented or any other approved form. In the act of pressing, the screw B is rotated in direction Ot the arrow. This rotation may be effected by a sweep attached directly to the head of the screw, or through the medium of gearing I, asin the diagram, or in any other suitable manner. Tlleabutment or resisting object against which the cotton or other material is compressed, consists of a head or platen, J, which depends from the frame A, to which it is connected by a kind of doublejointed hinge or articulation formed by links K K and pintles or bolts L and L', so as t0 be capable of being swung to` one side to enable the charging ofthe trunk. n `(See Fig.; 2,)1 The nut G is prevented from turning bywingsi` or lugsc, which travel in vertical grooves@l in the frame. i

It will be perceived that theinitial rapid-1` 'ity of ascent of the platform is nearly that of I l 1 V the nut itself, which with the: screwsustains `1 at first nearly the entire resisting stress ofthe j work; but as the work proceeds the accuinu-I` lating resistance is almost `wholly transferred p to the outer limbs of the toggles, accompaniedr.,

by a vastly increased exertion of power, andi Oi' course a corresponding `diminution of speed#` as the rods F and the outer limbs of the'tog-g` gles G G approximate to parallelism.` Tow` y ward the conclusion of the work the dutyofzQ the screw B is almost wholly `confined to thatyz n 3 It is there y tore apparent that although a vastly more in-` tense pressure accompanies the concluding` l i movements, yet the wear and strain upon the equal at fevery,

of a side-thrust upon the toggles.

thread of the screw is nearly Vpart of its length. I claimherein as newand of my inventionl-fl l. The provision, in a baling-press, ofthe` screw B, winged nut C c, verticalguidesD` n anda, toggles G G,rods E, platform E, and v n baling-trunk H, in the describedtcombination;

with the swinging platen J, the wholebeingf arranged and operating substantially asset f l forth..

2. While disclaiming the` idea or principle ,i of hinging the follower, I claim the suspended platen or abutment J, articulated to the frame by means ofthe links K K and. pintlesf LlL,

so as to be capable of being swung to one side for filling or charging the baling-trunk,`inthe `l manner described.

In testimony of which invention Ihereunto i `set my hand.

l GEO. `C. DAVIES. I i

iVitnesses: i l i A l GEO. III. KNIGHT,

JAMES. H. `LAYMAN. 

